Molecular Target Synopsis
Overview
Domains and Structures
Drugs and Clinical Candidates
Druggability
Chemistry
Ligand Efficiency Plot
Pathways
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
RNAi
Mutations
Germline Genetics

MED8 (Q96G25) - Overview - Molecular Target Synopsis

Protein


MED8, Mediator of RNA polymerase II transcription subunit 8
UniProt Q96G25

Also Known as MED8_HUMAN, MED8

Component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional preinitiation complex with RNA polymerase II and the general transcription factors. May play a role as a target recruitment subunit in E3 ubiquitin-protein ligase complexes and thus in ubiquitination and subsequent proteasomal degradation of target proteins. Component of the Mediator complex, which is composed of MED1, MED4, MED6, MED7, MED8, MED9, MED10, MED11, MED12, MED13, MED13L, MED14, MED15, MED16, MED17, MED18, MED19, MED20, MED21, MED22, MED23, MED24, MED25, MED26, MED27, MED29, MED30, MED31, CCNC, CDK8 and CDC2L6/CDK11. The MED12, MED13, CCNC and CDK8 subunits form a distinct module termed the CDK8 module. Mediator containing the CDK8 module is less active than Mediator lacking this module in supporting transcriptional activation. Individual preparations of the Mediator complex lacking one or more distinct subunits have been variously termed ARC, CRSP, DRIP, PC2, SMCC and TRAP. May be part of a multisubunit E3 ubiquitin-protein ligase complex with the elongin BC complex (ELOB and ELOC), CUL2 and RBX1.

Isoforms / Transcripts (Protein Coding)


Sub-cellular localization


UniProt: MED8 is active in the following subcellular-locations: nucleus.
GO terms: MED8 is active in the following subcellular-locations: core mediator complex, mediator complex, nucleoplasm.



UniProt
GO terms

Gene Copy Number Variation


In COSMIC - Cell Lines Project MED8 has gain in 3 cell-lines, loss in 1 cell-lines and no signal in 1001 cell-lines. (see details)

Gene Expression


In NCI60, the highest expressing cell lines are: SF_539, UACC_257, SNB_75

In Array Express (RNA-seq of 675 commonly used human cancer cell lines), the highest expressing cell lines are: Hs 746T, HEL, G112

In Array Express (RNA-seq of long poly adenylated RNA and long non poly adenylated RNA from ENCODE cell lines), the highest expressing cell lines are: SK-N-SH, NHLF, IMR-90

(see details)